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        <a href="gluon-module.html">Package&nbsp;gluon</a> ::
        Module&nbsp;streamer
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<h1 class="epydoc">Source Code for <a href="gluon.streamer-module.html">Module gluon.streamer</a></h1>
<pre class="py-src">
<a name="L1"></a><tt class="py-lineno"> 1</tt>  <tt class="py-line"><tt class="py-comment">#!/usr/bin/python</tt> </tt>
<a name="L2"></a><tt class="py-lineno"> 2</tt>  <tt class="py-line"><tt class="py-comment"></tt><tt class="py-comment"># -*- coding: utf-8 -*-</tt> </tt>
<a name="L3"></a><tt class="py-lineno"> 3</tt>  <tt class="py-line"><tt class="py-comment"></tt> </tt>
<a name="L4"></a><tt class="py-lineno"> 4</tt>  <tt class="py-line"><tt class="py-docstring">"""</tt> </tt>
<a name="L5"></a><tt class="py-lineno"> 5</tt>  <tt class="py-line"><tt class="py-docstring">This file is part of the web2py Web Framework (Copyrighted, 2007-2008)</tt> </tt>
<a name="L6"></a><tt class="py-lineno"> 6</tt>  <tt class="py-line"><tt class="py-docstring">Developed in Python by Massimo Di Pierro &lt;mdipierro@cs.depaul.edu&gt;</tt> </tt>
<a name="L7"></a><tt class="py-lineno"> 7</tt>  <tt class="py-line"><tt class="py-docstring">"""</tt> </tt>
<a name="L8"></a><tt class="py-lineno"> 8</tt>  <tt class="py-line"> </tt>
<a name="L9"></a><tt class="py-lineno"> 9</tt>  <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">os</tt> </tt>
<a name="L10"></a><tt class="py-lineno">10</tt>  <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">stat</tt> </tt>
<a name="L11"></a><tt class="py-lineno">11</tt>  <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">time</tt> </tt>
<a name="L12"></a><tt class="py-lineno">12</tt>  <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">re</tt> </tt>
<a name="L13"></a><tt class="py-lineno">13</tt>  <tt class="py-line"><tt class="py-keyword">from</tt> <tt id="link-0" class="py-name" targets="Module gluon.http=gluon.http-module.html"><a title="gluon.http" class="py-name" href="#" onclick="return doclink('link-0', 'http', 'link-0');">http</a></tt> <tt class="py-keyword">import</tt> <tt id="link-1" class="py-name" targets="Class gluon.http.HTTP=gluon.http.HTTP-class.html"><a title="gluon.http.HTTP" class="py-name" href="#" onclick="return doclink('link-1', 'HTTP', 'link-1');">HTTP</a></tt> </tt>
<a name="L14"></a><tt class="py-lineno">14</tt>  <tt class="py-line"><tt class="py-keyword">from</tt> <tt id="link-2" class="py-name" targets="Module gluon.contenttype=gluon.contenttype-module.html,Function gluon.contenttype.contenttype()=gluon.contenttype-module.html#contenttype"><a title="gluon.contenttype
gluon.contenttype.contenttype" class="py-name" href="#" onclick="return doclink('link-2', 'contenttype', 'link-2');">contenttype</a></tt> <tt class="py-keyword">import</tt> <tt id="link-3" class="py-name"><a title="gluon.contenttype
gluon.contenttype.contenttype" class="py-name" href="#" onclick="return doclink('link-3', 'contenttype', 'link-2');">contenttype</a></tt> </tt>
<a name="L15"></a><tt class="py-lineno">15</tt>  <tt class="py-line"><tt class="py-keyword">from</tt> <tt id="link-4" class="py-name" targets="Module gluon.rewrite=gluon.rewrite-module.html,Function gluon.rewrite.rewrite()=gluon.rewrite-module.html#rewrite"><a title="gluon.rewrite
gluon.rewrite.rewrite" class="py-name" href="#" onclick="return doclink('link-4', 'rewrite', 'link-4');">rewrite</a></tt> <tt class="py-keyword">import</tt> <tt id="link-5" class="py-name" targets="Variable gluon.rewrite.error_message=gluon.rewrite-module.html#error_message"><a title="gluon.rewrite.error_message" class="py-name" href="#" onclick="return doclink('link-5', 'error_message', 'link-5');">error_message</a></tt> </tt>
<a name="L16"></a><tt class="py-lineno">16</tt>  <tt class="py-line"> </tt>
<a name="L17"></a><tt class="py-lineno">17</tt>  <tt class="py-line"><tt id="link-6" class="py-name" targets="Variable gluon.streamer.regex_start_range=gluon.streamer-module.html#regex_start_range"><a title="gluon.streamer.regex_start_range" class="py-name" href="#" onclick="return doclink('link-6', 'regex_start_range', 'link-6');">regex_start_range</a></tt> <tt class="py-op">=</tt> <tt class="py-name">re</tt><tt class="py-op">.</tt><tt class="py-name">compile</tt><tt class="py-op">(</tt><tt class="py-string">'\d+(?=\-)'</tt><tt class="py-op">)</tt> </tt>
<a name="L18"></a><tt class="py-lineno">18</tt>  <tt class="py-line"><tt id="link-7" class="py-name" targets="Variable gluon.streamer.regex_stop_range=gluon.streamer-module.html#regex_stop_range"><a title="gluon.streamer.regex_stop_range" class="py-name" href="#" onclick="return doclink('link-7', 'regex_stop_range', 'link-7');">regex_stop_range</a></tt> <tt class="py-op">=</tt> <tt class="py-name">re</tt><tt class="py-op">.</tt><tt class="py-name">compile</tt><tt class="py-op">(</tt><tt class="py-string">'(?&lt;=\-)\d+'</tt><tt class="py-op">)</tt> </tt>
<a name="L19"></a><tt class="py-lineno">19</tt>  <tt class="py-line"> </tt>
<a name="L20"></a><tt class="py-lineno">20</tt>  <tt class="py-line"> </tt>
<a name="streamer"></a><div id="streamer-def"><a name="L21"></a><tt class="py-lineno">21</tt> <a class="py-toggle" href="#" id="streamer-toggle" onclick="return toggle('streamer');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="gluon.streamer-module.html#streamer">streamer</a><tt class="py-op">(</tt><tt class="py-param">file</tt><tt class="py-op">,</tt> <tt class="py-param">chunk_size</tt><tt class="py-op">=</tt><tt class="py-number">10</tt> <tt class="py-op">**</tt> <tt class="py-number">6</tt><tt class="py-op">,</tt> <tt class="py-param">bytes</tt><tt class="py-op">=</tt><tt class="py-name">None</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="streamer-collapsed" style="display:none;" pad="++" indent="++++"></div><div id="streamer-expanded"><a name="L22"></a><tt class="py-lineno">22</tt>  <tt class="py-line">    <tt class="py-name">offset</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L23"></a><tt class="py-lineno">23</tt>  <tt class="py-line">    <tt class="py-keyword">while</tt> <tt class="py-name">bytes</tt> <tt class="py-op">==</tt> <tt class="py-name">None</tt> <tt class="py-keyword">or</tt> <tt class="py-name">offset</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">bytes</tt><tt class="py-op">:</tt> </tt>
<a name="L24"></a><tt class="py-lineno">24</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">bytes</tt> <tt class="py-op">!=</tt> <tt class="py-name">None</tt> <tt class="py-keyword">and</tt> <tt class="py-name">bytes</tt> <tt class="py-op">-</tt> <tt class="py-name">offset</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">chunk_size</tt><tt class="py-op">:</tt> </tt>
<a name="L25"></a><tt class="py-lineno">25</tt>  <tt class="py-line">            <tt class="py-name">chunk_size</tt> <tt class="py-op">=</tt> <tt class="py-name">bytes</tt> <tt class="py-op">-</tt> <tt class="py-name">offset</tt> </tt>
<a name="L26"></a><tt class="py-lineno">26</tt>  <tt class="py-line">        <tt class="py-name">data</tt> <tt class="py-op">=</tt> <tt class="py-name">file</tt><tt class="py-op">.</tt><tt id="link-8" class="py-name" targets="Method gluon.tools.Crud.read()=gluon.tools.Crud-class.html#read,Method gluon.wsgiserver.SSLConnection.read()=gluon.wsgiserver.SSLConnection-class.html#read,Method gluon.wsgiserver.SSL_fileobject.read()=gluon.wsgiserver.SSL_fileobject-class.html#read,Method gluon.wsgiserver.SizeCheckWrapper.read()=gluon.wsgiserver.SizeCheckWrapper-class.html#read"><a title="gluon.tools.Crud.read
gluon.wsgiserver.SSLConnection.read
gluon.wsgiserver.SSL_fileobject.read
gluon.wsgiserver.SizeCheckWrapper.read" class="py-name" href="#" onclick="return doclink('link-8', 'read', 'link-8');">read</a></tt><tt class="py-op">(</tt><tt class="py-name">chunk_size</tt><tt class="py-op">)</tt> </tt>
<a name="L27"></a><tt class="py-lineno">27</tt>  <tt class="py-line">        <tt class="py-name">length</tt> <tt class="py-op">=</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">data</tt><tt class="py-op">)</tt> </tt>
<a name="L28"></a><tt class="py-lineno">28</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">length</tt><tt class="py-op">:</tt> </tt>
<a name="L29"></a><tt class="py-lineno">29</tt>  <tt class="py-line">            <tt class="py-keyword">break</tt> </tt>
<a name="L30"></a><tt class="py-lineno">30</tt>  <tt class="py-line">        <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L31"></a><tt class="py-lineno">31</tt>  <tt class="py-line">            <tt class="py-keyword">yield</tt> <tt class="py-name">data</tt> </tt>
<a name="L32"></a><tt class="py-lineno">32</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">length</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">chunk_size</tt><tt class="py-op">:</tt> </tt>
<a name="L33"></a><tt class="py-lineno">33</tt>  <tt class="py-line">            <tt class="py-keyword">break</tt> </tt>
<a name="L34"></a><tt class="py-lineno">34</tt>  <tt class="py-line">        <tt class="py-name">offset</tt> <tt class="py-op">+=</tt> <tt class="py-name">length</tt> </tt>
</div><a name="L35"></a><tt class="py-lineno">35</tt>  <tt class="py-line"> </tt>
<a name="L36"></a><tt class="py-lineno">36</tt>  <tt class="py-line"> </tt>
<a name="stream_file_or_304_or_206"></a><div id="stream_file_or_304_or_206-def"><a name="L37"></a><tt class="py-lineno">37</tt> <a class="py-toggle" href="#" id="stream_file_or_304_or_206-toggle" onclick="return toggle('stream_file_or_304_or_206');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="gluon.streamer-module.html#stream_file_or_304_or_206">stream_file_or_304_or_206</a><tt class="py-op">(</tt> </tt>
<a name="L38"></a><tt class="py-lineno">38</tt>  <tt class="py-line">    <tt class="py-param">static_file</tt><tt class="py-op">,</tt> </tt>
<a name="L39"></a><tt class="py-lineno">39</tt>  <tt class="py-line">    <tt class="py-param">chunk_size</tt><tt class="py-op">=</tt><tt class="py-number">10</tt> <tt class="py-op">**</tt> <tt class="py-number">6</tt><tt class="py-op">,</tt> </tt>
<a name="L40"></a><tt class="py-lineno">40</tt>  <tt class="py-line">    <tt class="py-param">request</tt><tt class="py-op">=</tt><tt class="py-name">None</tt><tt class="py-op">,</tt> </tt>
<a name="L41"></a><tt class="py-lineno">41</tt>  <tt class="py-line">    <tt class="py-param">headers</tt><tt class="py-op">=</tt><tt class="py-op">{</tt><tt class="py-op">}</tt><tt class="py-op">,</tt> </tt>
<a name="L42"></a><tt class="py-lineno">42</tt>  <tt class="py-line">    <tt class="py-param">error_message</tt><tt class="py-op">=</tt><tt id="link-9" class="py-name"><a title="gluon.rewrite.error_message" class="py-name" href="#" onclick="return doclink('link-9', 'error_message', 'link-5');">error_message</a></tt><tt class="py-op">,</tt> </tt>
<a name="L43"></a><tt class="py-lineno">43</tt>  <tt class="py-line">    <tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="stream_file_or_304_or_206-collapsed" style="display:none;" pad="++" indent="++++"></div><div id="stream_file_or_304_or_206-expanded"><a name="L44"></a><tt class="py-lineno">44</tt>  <tt class="py-line">    <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">path</tt><tt class="py-op">.</tt><tt class="py-name">exists</tt><tt class="py-op">(</tt><tt class="py-name">static_file</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L45"></a><tt class="py-lineno">45</tt>  <tt class="py-line">        <tt class="py-keyword">raise</tt> <tt id="link-10" class="py-name"><a title="gluon.http.HTTP" class="py-name" href="#" onclick="return doclink('link-10', 'HTTP', 'link-1');">HTTP</a></tt><tt class="py-op">(</tt><tt class="py-number">404</tt><tt class="py-op">,</tt> <tt id="link-11" class="py-name"><a title="gluon.rewrite.error_message" class="py-name" href="#" onclick="return doclink('link-11', 'error_message', 'link-5');">error_message</a></tt><tt class="py-op">,</tt> <tt class="py-name">web2py_error</tt><tt class="py-op">=</tt><tt class="py-string">'invalid file'</tt><tt class="py-op">)</tt> </tt>
<a name="L46"></a><tt class="py-lineno">46</tt>  <tt class="py-line">    <tt class="py-name">stat_file</tt> <tt class="py-op">=</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">stat</tt><tt class="py-op">(</tt><tt class="py-name">static_file</tt><tt class="py-op">)</tt> </tt>
<a name="L47"></a><tt class="py-lineno">47</tt>  <tt class="py-line">    <tt class="py-name">fsize</tt> <tt class="py-op">=</tt> <tt class="py-name">stat_file</tt><tt class="py-op">[</tt><tt class="py-name">stat</tt><tt class="py-op">.</tt><tt class="py-name">ST_SIZE</tt><tt class="py-op">]</tt> </tt>
<a name="L48"></a><tt class="py-lineno">48</tt>  <tt class="py-line">    <tt class="py-name">mtime</tt> <tt class="py-op">=</tt> <tt class="py-name">time</tt><tt class="py-op">.</tt><tt class="py-name">strftime</tt><tt class="py-op">(</tt><tt class="py-string">'%a, %d %b %Y %H:%M:%S GMT'</tt><tt class="py-op">,</tt> </tt>
<a name="L49"></a><tt class="py-lineno">49</tt>  <tt class="py-line">                          <tt class="py-name">time</tt><tt class="py-op">.</tt><tt class="py-name">gmtime</tt><tt class="py-op">(</tt><tt class="py-name">stat_file</tt><tt class="py-op">[</tt><tt class="py-name">stat</tt><tt class="py-op">.</tt><tt class="py-name">ST_MTIME</tt><tt class="py-op">]</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L50"></a><tt class="py-lineno">50</tt>  <tt class="py-line">    <tt class="py-name">headers</tt><tt class="py-op">[</tt><tt class="py-string">'Content-Type'</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt id="link-12" class="py-name"><a title="gluon.contenttype
gluon.contenttype.contenttype" class="py-name" href="#" onclick="return doclink('link-12', 'contenttype', 'link-2');">contenttype</a></tt><tt class="py-op">(</tt><tt class="py-name">static_file</tt><tt class="py-op">)</tt> </tt>
<a name="L51"></a><tt class="py-lineno">51</tt>  <tt class="py-line">    <tt class="py-name">headers</tt><tt class="py-op">[</tt><tt class="py-string">'Last-Modified'</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">mtime</tt> </tt>
<a name="L52"></a><tt class="py-lineno">52</tt>  <tt class="py-line">    <tt class="py-name">headers</tt><tt class="py-op">[</tt><tt class="py-string">'Pragma'</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-string">'cache'</tt> </tt>
<a name="L53"></a><tt class="py-lineno">53</tt>  <tt class="py-line">    <tt class="py-name">headers</tt><tt class="py-op">[</tt><tt class="py-string">'Cache-Control'</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-string">'private'</tt> </tt>
<a name="L54"></a><tt class="py-lineno">54</tt>  <tt class="py-line">    <tt class="py-keyword">if</tt> <tt class="py-name">request</tt> <tt class="py-keyword">and</tt> <tt class="py-name">request</tt><tt class="py-op">.</tt><tt id="link-13" class="py-name" targets="Function gluon.shell.env()=gluon.shell-module.html#env"><a title="gluon.shell.env" class="py-name" href="#" onclick="return doclink('link-13', 'env', 'link-13');">env</a></tt><tt class="py-op">.</tt><tt class="py-name">http_if_modified_since</tt> <tt class="py-op">==</tt> <tt class="py-name">mtime</tt><tt class="py-op">:</tt> </tt>
<a name="L55"></a><tt class="py-lineno">55</tt>  <tt class="py-line">        <tt class="py-keyword">raise</tt> <tt id="link-14" class="py-name"><a title="gluon.http.HTTP" class="py-name" href="#" onclick="return doclink('link-14', 'HTTP', 'link-1');">HTTP</a></tt><tt class="py-op">(</tt><tt class="py-number">304</tt><tt class="py-op">)</tt> </tt>
<a name="L56"></a><tt class="py-lineno">56</tt>  <tt class="py-line">    <tt class="py-keyword">elif</tt> <tt class="py-name">request</tt> <tt class="py-keyword">and</tt> <tt class="py-name">request</tt><tt class="py-op">.</tt><tt id="link-15" class="py-name"><a title="gluon.shell.env" class="py-name" href="#" onclick="return doclink('link-15', 'env', 'link-13');">env</a></tt><tt class="py-op">.</tt><tt class="py-name">http_range</tt><tt class="py-op">:</tt> </tt>
<a name="L57"></a><tt class="py-lineno">57</tt>  <tt class="py-line">        <tt class="py-name">start_items</tt> <tt class="py-op">=</tt> <tt id="link-16" class="py-name"><a title="gluon.streamer.regex_start_range" class="py-name" href="#" onclick="return doclink('link-16', 'regex_start_range', 'link-6');">regex_start_range</a></tt><tt class="py-op">.</tt><tt class="py-name">findall</tt><tt class="py-op">(</tt><tt class="py-name">request</tt><tt class="py-op">.</tt><tt id="link-17" class="py-name"><a title="gluon.shell.env" class="py-name" href="#" onclick="return doclink('link-17', 'env', 'link-13');">env</a></tt><tt class="py-op">.</tt><tt class="py-name">http_range</tt><tt class="py-op">)</tt> </tt>
<a name="L58"></a><tt class="py-lineno">58</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">start_items</tt><tt class="py-op">:</tt> </tt>
<a name="L59"></a><tt class="py-lineno">59</tt>  <tt class="py-line">            <tt class="py-name">start_items</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> </tt>
<a name="L60"></a><tt class="py-lineno">60</tt>  <tt class="py-line">        <tt class="py-name">stop_items</tt> <tt class="py-op">=</tt> <tt id="link-18" class="py-name"><a title="gluon.streamer.regex_stop_range" class="py-name" href="#" onclick="return doclink('link-18', 'regex_stop_range', 'link-7');">regex_stop_range</a></tt><tt class="py-op">.</tt><tt class="py-name">findall</tt><tt class="py-op">(</tt><tt class="py-name">request</tt><tt class="py-op">.</tt><tt id="link-19" class="py-name"><a title="gluon.shell.env" class="py-name" href="#" onclick="return doclink('link-19', 'env', 'link-13');">env</a></tt><tt class="py-op">.</tt><tt class="py-name">http_range</tt><tt class="py-op">)</tt> </tt>
<a name="L61"></a><tt class="py-lineno">61</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">stop_items</tt> <tt class="py-keyword">or</tt> <tt class="py-name">int</tt><tt class="py-op">(</tt><tt class="py-name">stop_items</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> <tt class="py-op">&gt;</tt> <tt class="py-name">fsize</tt> <tt class="py-op">-</tt> <tt class="py-number">1</tt><tt class="py-op">:</tt> </tt>
<a name="L62"></a><tt class="py-lineno">62</tt>  <tt class="py-line">            <tt class="py-name">stop_items</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-name">fsize</tt> <tt class="py-op">-</tt> <tt class="py-number">1</tt><tt class="py-op">]</tt> </tt>
<a name="L63"></a><tt class="py-lineno">63</tt>  <tt class="py-line">        <tt class="py-name">part</tt> <tt class="py-op">=</tt> <tt class="py-op">(</tt><tt class="py-name">int</tt><tt class="py-op">(</tt><tt class="py-name">start_items</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-name">int</tt><tt class="py-op">(</tt><tt class="py-name">stop_items</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-name">fsize</tt><tt class="py-op">)</tt> </tt>
<a name="L64"></a><tt class="py-lineno">64</tt>  <tt class="py-line">        <tt class="py-name">bytes</tt> <tt class="py-op">=</tt> <tt class="py-name">part</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> <tt class="py-op">-</tt> <tt class="py-name">part</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> <tt class="py-op">+</tt> <tt class="py-number">1</tt> </tt>
<a name="L65"></a><tt class="py-lineno">65</tt>  <tt class="py-line">        <tt class="py-keyword">try</tt><tt class="py-op">:</tt> </tt>
<a name="L66"></a><tt class="py-lineno">66</tt>  <tt class="py-line">            <tt id="link-20" class="py-name" targets="Method gluon.globals.Response.stream()=gluon.globals.Response-class.html#stream"><a title="gluon.globals.Response.stream" class="py-name" href="#" onclick="return doclink('link-20', 'stream', 'link-20');">stream</a></tt> <tt class="py-op">=</tt> <tt class="py-name">open</tt><tt class="py-op">(</tt><tt class="py-name">static_file</tt><tt class="py-op">,</tt> <tt class="py-string">'rb'</tt><tt class="py-op">)</tt> </tt>
<a name="L67"></a><tt class="py-lineno">67</tt>  <tt class="py-line">        <tt class="py-keyword">except</tt> <tt class="py-name">IOError</tt><tt class="py-op">:</tt> </tt>
<a name="L68"></a><tt class="py-lineno">68</tt>  <tt class="py-line">            <tt class="py-keyword">raise</tt> <tt id="link-21" class="py-name"><a title="gluon.http.HTTP" class="py-name" href="#" onclick="return doclink('link-21', 'HTTP', 'link-1');">HTTP</a></tt><tt class="py-op">(</tt><tt class="py-number">404</tt><tt class="py-op">)</tt> </tt>
<a name="L69"></a><tt class="py-lineno">69</tt>  <tt class="py-line">        <tt id="link-22" class="py-name"><a title="gluon.globals.Response.stream" class="py-name" href="#" onclick="return doclink('link-22', 'stream', 'link-20');">stream</a></tt><tt class="py-op">.</tt><tt class="py-name">seek</tt><tt class="py-op">(</tt><tt class="py-name">part</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L70"></a><tt class="py-lineno">70</tt>  <tt class="py-line">        <tt class="py-name">headers</tt><tt class="py-op">[</tt><tt class="py-string">'Content-Range'</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-string">'bytes %i-%i/%i'</tt> <tt class="py-op">%</tt> <tt class="py-name">part</tt> </tt>
<a name="L71"></a><tt class="py-lineno">71</tt>  <tt class="py-line">        <tt class="py-name">headers</tt><tt class="py-op">[</tt><tt class="py-string">'Content-Length'</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-string">'%i'</tt> <tt class="py-op">%</tt> <tt class="py-name">bytes</tt> </tt>
<a name="L72"></a><tt class="py-lineno">72</tt>  <tt class="py-line">        <tt class="py-keyword">raise</tt> <tt id="link-23" class="py-name"><a title="gluon.http.HTTP" class="py-name" href="#" onclick="return doclink('link-23', 'HTTP', 'link-1');">HTTP</a></tt><tt class="py-op">(</tt><tt class="py-number">206</tt><tt class="py-op">,</tt> <tt id="link-24" class="py-name" targets="Module gluon.streamer=gluon.streamer-module.html,Function gluon.streamer.streamer()=gluon.streamer-module.html#streamer"><a title="gluon.streamer
gluon.streamer.streamer" class="py-name" href="#" onclick="return doclink('link-24', 'streamer', 'link-24');">streamer</a></tt><tt class="py-op">(</tt><tt id="link-25" class="py-name"><a title="gluon.globals.Response.stream" class="py-name" href="#" onclick="return doclink('link-25', 'stream', 'link-20');">stream</a></tt><tt class="py-op">,</tt> <tt class="py-name">chunk_size</tt><tt class="py-op">=</tt><tt class="py-name">chunk_size</tt><tt class="py-op">,</tt> </tt>
<a name="L73"></a><tt class="py-lineno">73</tt>  <tt class="py-line">                   <tt class="py-name">bytes</tt><tt class="py-op">=</tt><tt class="py-name">bytes</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-op">**</tt><tt class="py-name">headers</tt><tt class="py-op">)</tt> </tt>
<a name="L74"></a><tt class="py-lineno">74</tt>  <tt class="py-line">    <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L75"></a><tt class="py-lineno">75</tt>  <tt class="py-line">        <tt class="py-keyword">try</tt><tt class="py-op">:</tt> </tt>
<a name="L76"></a><tt class="py-lineno">76</tt>  <tt class="py-line">            <tt id="link-26" class="py-name"><a title="gluon.globals.Response.stream" class="py-name" href="#" onclick="return doclink('link-26', 'stream', 'link-20');">stream</a></tt> <tt class="py-op">=</tt> <tt class="py-name">open</tt><tt class="py-op">(</tt><tt class="py-name">static_file</tt><tt class="py-op">,</tt> <tt class="py-string">'rb'</tt><tt class="py-op">)</tt> </tt>
<a name="L77"></a><tt class="py-lineno">77</tt>  <tt class="py-line">        <tt class="py-keyword">except</tt> <tt class="py-name">IOError</tt><tt class="py-op">:</tt> </tt>
<a name="L78"></a><tt class="py-lineno">78</tt>  <tt class="py-line">            <tt class="py-keyword">raise</tt> <tt id="link-27" class="py-name"><a title="gluon.http.HTTP" class="py-name" href="#" onclick="return doclink('link-27', 'HTTP', 'link-1');">HTTP</a></tt><tt class="py-op">(</tt><tt class="py-number">404</tt><tt class="py-op">)</tt> </tt>
<a name="L79"></a><tt class="py-lineno">79</tt>  <tt class="py-line">        <tt class="py-name">headers</tt><tt class="py-op">[</tt><tt class="py-string">'Content-Length'</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">fsize</tt> </tt>
<a name="L80"></a><tt class="py-lineno">80</tt>  <tt class="py-line">        <tt class="py-keyword">raise</tt> <tt id="link-28" class="py-name"><a title="gluon.http.HTTP" class="py-name" href="#" onclick="return doclink('link-28', 'HTTP', 'link-1');">HTTP</a></tt><tt class="py-op">(</tt><tt class="py-number">200</tt><tt class="py-op">,</tt> <tt id="link-29" class="py-name"><a title="gluon.streamer
gluon.streamer.streamer" class="py-name" href="#" onclick="return doclink('link-29', 'streamer', 'link-24');">streamer</a></tt><tt class="py-op">(</tt><tt id="link-30" class="py-name"><a title="gluon.globals.Response.stream" class="py-name" href="#" onclick="return doclink('link-30', 'stream', 'link-20');">stream</a></tt><tt class="py-op">,</tt> <tt class="py-name">chunk_size</tt><tt class="py-op">=</tt><tt class="py-name">chunk_size</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> </tt>
<a name="L81"></a><tt class="py-lineno">81</tt>  <tt class="py-line">                   <tt class="py-op">**</tt><tt class="py-name">headers</tt><tt class="py-op">)</tt> </tt>
</div><a name="L82"></a><tt class="py-lineno">82</tt>  <tt class="py-line"> </tt><script type="text/javascript">
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